Electbothebapetmcai



W. A. D; EVANS. mcmommmunm DEVICE. I APPLICATION FILED JULY 25I i9141 1,303,273 I Patented May 13, 1919.

3 SHEETSSHEET 1- ZIIVVEIVT OR I y F l 'nrroemn g w. A. D. EVANS. ELECTBOTHERAPEUTICAL DEVICE.

APPLICATION FILED JULY 25, 19M.

May 13 Patented 1919.

- 3 SHEETS-SHEET 2.

WITNESSES W. A. D. EVANS. ELECTROTHERAPEUTICAL DEVICE.

APPLICATION FILED JULY 25. I914- Patented May 13,1919.

3 SHEETS- SHEET 3- W/TNESSES To all whom it may concern:

to the electrical circuits.

' which are kept in place by 111 8, 8. The bracket 6 .is conne ed to one end WILLIAM A. no. events, or NEW YORK, n. r, nssienon ro coornnnnwrrr nnnormc COMPANY, or HOBOKEN, new Jnnsnr, a conronn'rloiv on NEW JERSEY.

TELEC'IROTHIQRAPEUTTCAL DEVICE.

Specification of Letters Patent.

Patented May 13', 1919,.

- Application filed July 25,1914: Serial No. stance.

I ,1 Be it known that-l, WIIJLIAM A. D. EVAN-s, a citizen of the United States, and resident of New York, county of New York, State of New York, have invented certain new and useful Improvements in Electrotherapeutical Devices, of which the following is a specification.

Use has been made in surgical and therapeuticalwork of the advantages of ultra -violet radiation applied in various Ways.

Certain difliculties have, however, been encountered by those wishing to make such appllcatlon, owing to the fact that itis dificult to bring the ultra violet rays to the place where they are most needed, without danger of the exposure of the operator to, the evil efl'ects which appertain to ultra violet radiation improperly appliedl' n the other hand it will be appreciated that in many instances it is impossible ordangerous- I to bring the subject into a positionv where a stationary source of radiation can be/suc- 7 cessfully applied.

So far as 1 know, the art does not yet disclose any means for the handy manipulation of a source of ultra violet radiation doing away with the necessity of moving the subject or or causin an exposure of the oper-' ator to unwishe for efiects.

My invention relates to the matter of providing such, means which is illustrated in the accompanying drawings in which Figure 1 is a side elevation of my apparatus;

and Fig. 2 is a sectional view of the source of ultra violet radiation and its connected parts; Fig. 3 is a view of a' shutter mecha'-' nism made use of in applying the ultra violet radiation; and Fig. dis a diagram of Tn the drawings, 1 is a source of ultra violet radiation, in this instance shown as a mercury vapor lamp having a quartz burner.

The lamp 1 is mounted in a frame, 2, piv- 'oted at 3 to a lug, a, mountedon a curved support, 5.

The curvedv support 5 passes at its ends through the arms of a bracket, 6, where it, is held by means ins shown at rounding a hollow or tubular standard, 11.

The standard itself, being supported by a tripod, 12, mounted on casters, 13, 13, may

the conditions are right.

be moved to any desired position horizontally, thus making it possible to bring the bracket 6 and its. connected parts to the position required. After the sleeve 10 has been adjusted to any given position, it mav' be fixed in place upon the standard by means of a screw bolt, 14:. This arrangement provides for the vertical adjustment of the lazy tongs and its supported parts.

The tripod, 12, supports the usual auxiliary, 15, for the lamp parts. To the tripod is secured a cleat, 16, for holdingwires, 17, 18, leading from the generator or source of current supply. These wires pass to a switch, 19, by means of which the main supply current-can be connected to ordisconnected from the lamp circuit.

It will be observed that binding posts, 20 and 21, stand up from the container of the auxiliary, 15, and, as seen in Fig. 4:, a wire, 22, is connected to the first named binding post and a wire, 23. to the second named binding post. The wire 22 properly insulated, passes up through the interior of the tubular standard 11 and also through the coils or curves of a cable, 24, (as shown diagrammatically in Fig. 4) and thence. to. a

binding post, 25, connectedto one terminal of the lamp 1. The Wire 23 passes to the switch 19 and thence through the hollow tube 11 and the cable 24 to a binding post,

can be thrown into or out ofcircuit when For starting the lamp I employ a bell-cranklever, 27, pivoted at 28 and extending by means of one of its arms under a pin, 29, on the frame 2. The other arm of the lever 27 projects downward into range with a push rod, 30, by

means of whichthe lever, as a whole, may be operated to lift one endof the lamp'and cause a continuous flow of mercury between the electrodes or terminals of the lamp. At thismoment, it the local lamp circuit is, otherwise closed, as already described, current will flow through the lamp by way of the streamofmercury and, when this stream .is ruptured, the vapor between the electrodes-will carry current and produce luminous effects and ultra violet radiation.

Around the lamp 1T place a container, 31, which is generally cylindrical in shape. At its top there are vent holes, 32, 32, for permitting heated gases to escape and below at which the ultra violet radiation emerges from the cylinder. There are central openings in the cylinder 31,

' the smooth surface of the nuts or lugs, 36, suitable washers,37, 37 ,being provided as is customary peutical point of view,

Q ratus from place to place by means 0 5 in such cases. Manifestly the cylinder may be rotated as already indicated and in so doing it will accomplish the purpose set forth above. k

At is central portion, the top of the cylinder is formed into continuous lips, 38, 38, between which a plate or rim, 39, is held, the latter serving as a guide to prevent the twisting or displacement of the cylinder during rotation. To this end'the rim 39 00-- operates with a pair of plates, 40, 40, de-

pending from the bracket 6, said plates be mg capable of being fixed in place by means of thumb screw or wing screw, 41. The object of the screw is to hold the cylinder firmly in place after the adjustment thereof to any desired position. By turnin the screw, 41, this 'can be accomplished. it 42, 42 are shown observation windows, the purpose of which isobvious. The bottoms of these windows are set into spun metal casings, 43, 43, forming part of the cylinder and extending downward and being formed into flanges, 44, 44, towhich a taperin metal chamber, 45, is secured. To the bottom of theflchamber 45 is secured a shutter device 46 comprising the usual slides 47 and 48 and the usual guides 49 and 50. Handles,"

51, 51, are provided to permit of the 'easy adjustment of the slides.

this arrangement, a eater or smaller regionjof applied radiation can be provided at will."

upthe main advantages of the Summing hereln described,.-from a theraapparatus providing for the easymoving of the afpplat e tripod, secondly the useofthe lazy tongs and' the vertical adjusting devices 10 and 14 permits the localizingpf the radiation at any desired point, WhlCh is further reinorced. thirdly by the fact that the; cylinder re arded as a whole, 1 which openings fit aroun Manifestly, by

ing. the first resides 1n containing the source of radiation is capable of rotation and, fourthly, by the adjustment, through the shutter device of the amount of surface upon which t e ultra violet radiation is focused.

It will be understood that other devices for projecting or extending the position of the lamp and its support may be substituted for the lazy tongs shown and described herein.

While, for convenience, I have selected the quartz lamp as an example of a convenient source of ultra violet radiation, yet I do not wish to limit myself to the employment of that source alone.

I claim as my invention:

1. In an electro-therapeutic apparatus, the combination of an adjustable standard, a quartz lamp mounted thereon, a container for the said lamp having an opening for the A passage of ultra violet rays, a lens pervious to said rays in saidopemng, means for changing the position of the opening with relation to the lamp and'an adjustable shutter closing'off the said opening.

3. In an electro-therapeutic apparatus, the combination of a standard, a source of ultra violet radiation mounted on the same, a container for the said source having an opening for the passage of ultra violet rays, a lens pervious to said rays in said opening g and means for changing'the position of the opening with relation to the source.

'4. In an electro-therapeutic apparatus, the combination of a standard, a source of ultra violet radiation mounted on the same, a container for the said source having an opening for the passage of ultra. violet rays, a lens pervious to said rays in said opening, means for changing the position of the openin with relation to the source, and an adjusta Signed at New York in the.countyl of New York and State of New York this 23d day of July A. D. 1914.

' v WHJLIAM A. D. EVANS. Witnesses: i

C. H. B. WOODWARD, GEORGE H. ,STOCKBRDGE.

le. shutter closing off the said open- 

